To send transactional SMS messages programmatically, it's important to first identify what and where the list and message IDs are. The methods to get phone lists and list messages allow you to retrieve these IDs through the API calls.

These IDs can also be found in the application by navigating to Messages > SMS Transactional SMS. 💡 If you have multiple short codes, you will need to select the correct short code from list navigation dropdown menu.

Message ID

List ID

Store these IDs for use in your test calls.

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